buchi, 23 Jul 2012when i receive a missed call or call from new number which is not in my contact list, the phon... moreI ve also experienced te same problem.
Just do one thng.
Install new PC suit in your computer.
Connect ur PC to internet.
Update the software of your phone through PC.It will take 30 to 40 min.
Restat ur phone.
It will work.

when i receive a missed call or call from new number which is not in my contact list, the phone is getting struck and its get restarted. If i want to dial a number which is not in my contact, the same problem occurs. Please suggest me what to do?

I love this phone .. ive been using this for about 4 years.. nevr been touch by any repair shop coz never have problem yet but i wanna change the case..but here in Philippines, i orderd casing but till now no casing come.. just i wanna change the case only.. most i love in this phone is the internet..very nice easy in internet.. if ever i change my phone.. i want to change it in same model too but i want the red color.. hope my case will come na.. im too long waiting.. many times my phone fall but not definitely broke still working got little crack but its still ok.. thnks sony ericsson :)

this would have to be the worst phone on the market, absolute rubbish, keep freezing either when receiving a txt or when sending also freezes half way through a call then have to wait for the piece of shit to turn itself off and then on agian before you can continue. Never had any problems with Erricson phones before they went digital.